[jira] [Created] (ARROW-15291) [C++][Python] Segfault in StructArray.to_numpy and to_pandas if it contains an ExtensionArray

["quentin lhoest (Jira)" <ji...@apache.org>]

quentin lhoest created ARROW-15291:
--------------------------------------

             Summary: [C++][Python] Segfault in StructArray.to_numpy and to_pandas if it contains an ExtensionArray
                 Key: ARROW-15291
                 URL: https://issues.apache.org/jira/browse/ARROW-15291
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++, Python
    Affects Versions: 6.0.1
         Environment: pyarrow 6.0.1, macbook pro
            Reporter: quentin lhoest


Hi !

If you create a StructArray with an ExtensionArray in it, then both to_numpy and to_pandas  segfault in python:
{code:java}
import pyarrow as pa

class CustomType(pa.PyExtensionType):
    def __init__(self):
        pa.PyExtensionType.__init__(self, pa.binary())
    def __reduce__(self):
        return CustomType, ()

arr = pa.ExtensionArray.from_storage(CustomType(), pa.array([b"foo"]))
pa.StructArray.from_arrays([arr], ["name"]).to_numpy(zero_copy_only=False)
 {code}
Thanks in advance for the help !



--
This message was sent by Atlassian Jira
(v8.20.1#820001)